Abstract: Provided according to the present invention is a vehicular engine cooling apparatus comprising cooling fan means for cooling at least one of an engine and an environment of the engine, the engine being operated with use of any of two or more different fuels and a mixed fuel formed of a combination of the different fuels. This apparatus further comprises a mixture ratio sensor for detecting the mixture ratio of the two or more different fuels, and a controller for actuating the cooling fan means in accordance with the fuel mixture ratio detected by the mixture ratio sensor, after the engine is stopped. Preferably, the cooling fan is operated only during a predetermined operating time set in accordance with the fuel mixture ratio and the temperature of at least one of the engine and the environment of the engine.

Abstract: In an engine using fuel mixture of gasoline and methanol, the present control system compensates a detection value of a blend ratio sensor with a detection value of a knock sensor, or causes trouble detecting means to detect a failure of the blend ratio sensor and memories the blend ratio immediately before the failure as an assumed blend ratio and compensates the stored value with the detection value of the knock sensor, whereby the engine control is executed based on the control blend ratio and the ignition timing acquired through the compensation.